Can we be sure that the chess program does not
use stderr for some operations instead of stdout?
Wasn't there a suggestion some time before in Forum
to treat stderr for task too somehow?
At any rate, what if, even without the response
there, try to send other commands like "quit",
will it act on it?
Try to run the same from jconsle, maybe if
will show what's spilled into stderr.
Do other tests work: "more" and "jconsole"?
--- JC Coez <[EMAIL PROTECTED]> wrote:
> Oleg,
> Thanks for your help.
> I tried the following after modifying the peekpike as follow (ugly but to
> have an idea) :
> PeekPipe=: 3 : 0
> smoutput 'peekpipe'
> avail=. ,_1
> if.0=PeekNamedPipe y;0;0;0;avail;0 do.''return.end.
> smoutput {.avail
> {.avail
> )
> and then I had :
> p=:'jtask' conew~'c:\arion\arion.exe'
> write__p 'help',LF
> 1
> wait__p 20
> peekpipe
> 0
> peekpipe
> 0
> peekpipe
> 0
> peekpipe
> 0
> peekpipe
> 0
> peekpipe
> 0
> peekpipe
> 0
> peekpipe
> 0
> peekpipe
> 0
> peekpipe
> 0
> 0
> read__p ''
> peekpipe
> 0
>
> the 'help' is a valid command for the arion.exe which started (as I see in
> the Windows task manager ).
> That program prompts the user with 'Arion>' similar to a 'Ready'. Could it
> be possible to ReadFile and "suspend" that thread as soon as such a string
> is received ?
> Anyway I think that the wait might be also useful in my case because there
> is a parameter in arion which specify the maximum time for a calculation of
> a chess move.
>
> JC Coez
>
> ----- Original Message -----
> From: "Oleg Kobchenko" <[EMAIL PROTECTED]>
> To: "Programming forum" <[email protected]>
> Sent: Tuesday, April 03, 2007 12:21 PM
> Subject: Re: [Jprogramming] stdin/stdout
>
>
> > There is a version of interactive task enhancement
> > at http://www.jsoftware.com/jwiki/OlegKobchenko/Interactive_Task
> >
> > It uses "naive" wait, which nevertheless works
> > with Windows "more" command. (A more correct approach
> > would require overlapped IO.)
> >
> > However, I believe this should be worth a try.
> > The wait timeouts should be calibrated for
> > particular application. Wait should be done
> > and return non-zero before any read.
> >
> > Try something simple first and see how it goes.
> >
> >
> > --- JC Coez <[EMAIL PROTECTED]> wrote:
> >
> >> It seems to be exactly what happened in my case wth the Arion chess
> >> engine.
> >> When you will have some time to solve that please let me know.
> >>
> >> JC Coez
> >>
> >> ----- Original Message -----
> >> From: "Raul Miller" <[EMAIL PROTECTED]>
> >> To: "Programming forum" <[email protected]>
> >> Sent: Monday, April 02, 2007 9:33 PM
> >> Subject: Re: [Jprogramming] stdin/stdout
> >>
> >>
> >> >I downloaded and installed arasan 9.5 from
> >> > http://www.arasanchess.org/downld.html
> >> >
> >> > I ran arasan.exe, and the gui worked.
> >> >
> >> > I ran arasanx.exe, and the stdio interface worked (I was able to enter
> >> > commands like
> >> > e7e6 and e2e4, and get plausible responses).
> >> >
> >> > In J, I defined:
> >> > spawnio=:3 :0
> >> > require'task'
> >> > cocurrent 'jtask'
> >> > 'or ow'=.CreatePipe 1
> >> > 'ir iw'=.CreatePipe 2
> >> > ph=.(ow,ir) CreateProcess y
> >> > if.1>ph do.
> >> > CloseHandle or,ow,ir,iw
> >> > assert.0
> >> > end.
> >> > CloseHandle ow,ir
> >> > iw,or
> >> > )
> >> >
> >> > arasanx=:3 :0
> >> > spawnio (2!:5'APPDATA'),'\arasanx.exe'
> >> > )
> >> >
> >> > rd=:ReadAll_jtask_
> >> > wr=:WriteAll_jtask_
> >> >
> >> > Then, I tried:
> >> > arasanx''
> >> > 548 424
> >> > rd 424
> >> >
> >> > At this point, my J session "froze". I then went to the OS, and ended
> >> > the
> >> > arasanx process. As soon as I did this, J returned the text of the
> >> > first
> >> > line
> >> > from arasanx:
> >> >
> >> > Arasan 9.5 Copyright 1994-2006 by Jon Dart
> >> >
> >> > If I wanted to make this work, I'd have to figure out how to read and
> >> > write lines. (task.ijs does not include a ReadLine verb.)
> >> >
> >> > I think I know how to make this work (actually, I have several ideas
> >> > I could try), but I don't have time to mess with this right now.
> >> >
> >> > --
> >> > Raul
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